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Radiation dosimetry in the fields of health physics and radiation protection is the measurement, calculation and assessment of the ionizing radiation dose absorbed by an object, usually the human body. This applies both internally, due to ingested or inhaled radioactive substances, or externally due to irradiation by sources of radiation.
Ionising radiation damage to the human body is cumulative, and is related to the total dose received, for which the SI unit is the sievert. Radiographers , nuclear power plant workers, doctors using radiotherapy , HAZMAT workers, and other people in situations that involve handling radionuclides are often required to wear dosimeters so a record ...
A lung counter. A lung counter is a system consisting of a radiation detector, or detectors, and associated electronics that is used to measure radiation emitted from radioactive material that has been inhaled by a person and is sufficiently insoluble as to remain in the lung for weeks, months, or years. [1]
Radiation exposure is a measure of the ionization of air due to ionizing radiation from photons. [1] It is defined as the electric charge freed by such radiation in a specified volume of air divided by the mass of that air. [ 1 ]
Civil defense Geiger counters, handheld radiation monitors, both G-M and ion chambers; Counting efficiency the ratio of radiation events reaching a detector and the number it counts; Data sonification, the interpretation or processing of data by sound; Dosimeter, a device used by personnel to measure what radiation dose they have received
A dose of 100 to 200 rad delivered to the entire body in less than a day may cause acute radiation syndrome (ARS), but is usually not fatal. Doses of 200 to 1,000 rad delivered in a few hours will cause serious illness, with poor prognosis at the upper end of the range. Whole body doses of more than 1,000 rad are almost invariably fatal. [3]
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